#ifndef _IO_H
#define _IO_H

#include <linux/poll.h>
#include <linux/fs.h>

int send(int fd, const void *buf, int len, int flags);

int recv(int fd, void *buf, int len, int flags);

int poll(struct pollfd *fds, int nfds, int timeout);

int write(struct file* filp, const void *buf, int len);

int read(struct file* filp, void *buf, int len);

#endif
